Buggy code:
} else { showError ( "-outjar<seq2seq4repair_space>requires<seq2seq4repair_space>jar<seq2seq4repair_space>path<seq2seq4repair_space>argument" ) ; } } else if ( arg . equals ( "-incremental" ) ) { buildConfig . setIncrementalMode ( true ) ; } else if ( arg . equals ( "-XincrementalFile" ) ) { if ( ( args . size ( ) ) > nextArgIndex ) { File file = makeFile ( ( ( ConfigParser . Arg ) ( args . get ( nextArgIndex ) ) ) . getValue ( ) ) ; buildConfig . setIncrementalFile ( file ) ; if ( ! ( file . canRead ( ) ) ) { showError ( ( "bad<seq2seq4repair_space>-XincrementalFile<seq2seq4repair_space>:<seq2seq4repair_space>" + file ) ) ; } args . remove ( args . get ( nextArgIndex ) ) ; } else { showError ( "-XincrementalFile<seq2seq4repair_space>requires<seq2seq4repair_space>file<seq2seq4repair_space>argument" ) ; } } else if ( arg . equals ( "-emacssym" ) ) { buildConfig . setEmacsSymMode ( true ) ; buildConfig . setGenerateModelMode ( true ) ; } else if ( arg . equals ( "-XjavadocsInModel" ) ) { buildConfig . setGenerateModelMode ( true ) ; buildConfig . setGenerateJavadocsInModelMode ( true ) ; } else if ( ( arg . equals ( "-noweave" ) ) || ( arg . equals ( "-XnoWeave" ) ) ) { buildConfig . setNoWeave ( true ) ; } else if ( arg . equals ( "-XserializableAspects" ) ) { buildConfig . setXserializableAspects ( true ) ; } else if ( arg . equals ( "-XlazyTjp" ) ) { buildConfig . setXlazyTjp ( true ) ; } else if ( arg . startsWith ( "-Xreweavable" ) ) { buildConfig . setXreweavable ( true ) ; if ( arg . endsWith ( ":compress" ) ) { buildConfig . setXreweavableCompressClasses ( true ) ; } } else if ( arg . equals ( "-XnoInline" ) ) { buildConfig . setXnoInline ( true ) ; } else if ( arg . startsWith ( "-showWeaveInfo" ) ) { buildConfig . setShowWeavingInformation ( true ) ; } else if ( arg . equals ( "-Xlintfile" ) ) { if ( ( args . size ( ) ) > nextArgIndex ) { File lintSpecFile = makeFile ( ( ( ConfigParser . Arg ) ( args . get ( nextArgIndex ) ) ) . getValue ( ) ) ; if ( ( lintSpecFile . canRead ( ) ) && ( lintSpecFile . getName ( ) . endsWith ( ".properties" ) ) ) { buildConfig . setLintSpecFile ( lintSpecFile ) ; } else { showError ( ( "bad<seq2seq4repair_space>-Xlintfile<seq2seq4repair_space>file:<seq2seq4repair_space>" + lintSpecFile ) ) ; buildConfig . setLintSpecFile ( null ) ; } args . remove ( args . get ( nextArgIndex ) ) ; } else { showError ( "-Xlintfile<seq2seq4repair_space>requires<seq2seq4repair_space>.properties<seq2seq4repair_space>file<seq2seq4repair_space>argument" ) ; } } else if ( arg . equals ( "-Xlint" ) ) { buildConfig . setLintMode ( AJLINT_DEFAULT ) ; } else if ( arg . startsWith ( "-Xlint:" ) ) { if ( 7 < ( arg . length ( ) ) ) { buildConfig . setLintMode ( arg . substring ( 7 ) ) ; } else { showError ( ( "invalid<seq2seq4repair_space>lint<seq2seq4repair_space>option<seq2seq4repair_space>" + arg ) ) ; } } else if ( arg . equals ( "-bootclasspath" ) ) { if ( ( args . size ( ) ) > nextArgIndex ) { String bcpArg = ( ( ConfigParser . Arg ) ( args . get ( nextArgIndex ) ) ) . getValue ( ) ; StringBuffer bcp = new StringBuffer ( ) ; StringTokenizer strTok = new StringTokenizer ( bcpArg , File . pathSeparator ) ; while ( strTok . hasMoreTokens ( ) ) { bcp . append ( makeFile ( strTok . nextToken ( ) ) ) ; if ( strTok . hasMoreTokens ( ) ) { bcp . append ( File . pathSeparator ) ; } } bootclasspath = bcp . toString ( ) ; args . remove ( args . get ( nextArgIndex ) ) ; } else { showError ( "-bootclasspath<seq2seq4repair_space>requires<seq2seq4repair_space>classpath<seq2seq4repair_space>entries" ) ; } } else <START_BUG> if ( arg . equals ( "-classpath" ) ) { <END_BUG> if ( ( args . size ( ) ) > nextArgIndex ) { String cpArg = ( ( ConfigParser . Arg ) ( args . get ( nextArgIndex ) ) ) . getValue ( ) ; StringBuffer cp = new StringBuffer ( ) ; StringTokenizer strTok = new StringTokenizer ( cpArg , File . pathSeparator ) ; while ( strTok . hasMoreTokens ( ) ) { cp . append ( makeFile ( strTok . nextToken ( ) ) ) ; if ( strTok . hasMoreTokens ( ) ) { cp . append ( File . pathSeparator ) ; } } classpath = cp . toString ( ) ; args . remove ( args . get ( nextArgIndex ) ) ; } else { showError ( "-classpath<seq2seq4repair_space>requires<seq2seq4repair_space>classpath<seq2seq4repair_space>entries" ) ; } } else if ( arg . equals ( "-extdirs" ) ) { if ( ( args . size ( ) ) > nextArgIndex ) { String extdirsArg = ( ( ConfigParser . Arg ) ( args . get ( nextArgIndex ) ) ) . getValue ( ) ; StringBuffer ed = new StringBuffer ( ) ; StringTokenizer strTok = new StringTokenizer ( extdirsArg , File . pathSeparator ) ; while ( strTok . hasMoreTokens ( ) ) { ed . append ( makeFile ( strTok . nextToken ( ) ) ) ; if ( strTok . hasMoreTokens ( ) ) { ed . append ( File . pathSeparator ) ; } } extdirs = ed . toString ( ) ; args . remove ( args . get ( nextArgIndex ) ) ; } else { showError ( "-extdirs<seq2seq4repair_space>requires<seq2seq4repair_space>list<seq2seq4repair_space>of<seq2seq4repair_space>external<seq2seq4repair_space>directories" ) ; } } else if ( arg . equals ( "-d" ) ) { dirLookahead ( arg , args , nextArgIndex ) ; } else if ( new File ( arg ) . isDirectory ( ) ) { showError ( ( "dir<seq2seq4repair_space>arg<seq2seq4repair_space>not<seq2seq4repair_space>permitted:<seq2seq4repair_space>" + arg ) ) ; } else { unparsedArgs . add ( arg ) ; } }

Fix:
if ( ( arg . equals ( "-classpath" ) ) || ( arg . equals ( "-cp" ) ) ) {